function enter(pi) {
    if (pi.isQuestActive(6110)) {
		if (pi.getParty() != null) {
			if (!pi.isLeader()) {
				pi.playerMessage("Party leader consisting of two Warriors can decide to enter." );
			} else {
				if (pi.getParty().getMembers().size < 2) {
					pi.playerMessage("You can make a quest when you have a party with two. Please make your party with two members." );
				} else {
					if (!pi.isAllPartyMembersAllowedJob(1)) {
						pi.playerMessage("You can't enter. Your party member's job is not Warrior or Your party doesn't consist of two members.");
					} else {
						var em = pi.getEventManager("4jrush");
						if (em == null) {
							pi.playerMessage("You're not allowed to enter with unknown reason. Try again." );
						} else {
							em.startInstance(pi.getParty(), pi.getMap());
							return true;
						}
					}
				}
			}
		 } else {
			 pi.playerMessage(5, "You don...t have a  party. You can challenge with party.");
		}
    } else {
		pi.playerMessage("You can't enter sealed place.");
    }
    return false;
}